Hello,
We are currently trying to make a Wifi USB key (Edimax EW7811Un) working, but we have some issues.
This USB wifi key works with RTL8192CU driver, We added it in the kernel defconfig file, the driver was loaded but we can’t find any wifi network.
When we plug the USB key :
[ 38.453736] usb 1-1.1: new high-speed USB device number 3 using ci_hdrc
[ 38.651259] cfg80211: Calling CRDA to update world regulatory domain
[ 38.730337] rtl8192cu: Chip version 0x10
[ 38.827338] rtl8192cu: MAC address: 74:da:38:6a:e4:da
[ 38.832428] rtl8192cu: Board Type 0
[ 38.836605] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1
[ 38.842567] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin
[ 38.850178] usbcore: registered new interface driver rtl8192cu
[ 38.862832] rtlwifi: wireless switch is on
After that we run
ifconfig wlan0 up
[ 46.680949] rtl8192cu: MAC auto ON okay!
[ 46.719251] rtl8192cu: Tx queue select: 0x05
[ 47.113837] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
With ifconfig we can see wlan0
wlan0 Link encap:Ethernet HWaddr 74:DA:38:6A:E4:DA
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
But the scan does not give any results
root@colibri-imx6:~# iwlist wlan0 scan
wlan0 No scan results
Have you ever encountered this issue?
Regards,
Pierre-Olivier